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Discovery of a new endogenous type C retrovirus (FcEV) in cats: evidence for RD-114 being an FcEV(Gag-Pol)/baboon endogenous virus BaEV(Env) recombinant.


ABSTRACT: Analysis of a cat genomic DNA library showed that cats harbor a previously unrecognized endogenous type C retrovirus, whose env gene has homology to the murine Fv-4 resistance gene. This unique retrovirus, designated FcEV (Felis catus endogenous retrovirus), has a type C pol gene, closely related to the primate Papio cynocephalus endogenous virus (PcEV) pol, not overlapping the env gene, unlike in other type C retroviruses, and is presumably present in a higher copy number than RD-114. Phylogenetic analysis of FcEV and RD-114 fragments amplified from cat species and comparison with baboon endogenous virus (BaEV) fragments from monkeys suggested that RD-114 does not represent the cat strain of BaEV but is actually a new recombinant between FcEV type C genes and the env gene of BaEV. Although BaEV did appear to have infected an ancestor of the domestic cat lineage, it was a de novo recombinant that made its way into the cat germ line.

SUBMITTER: van der Kuyl AC 

PROVIDER: S-EPMC112814 | biostudies-literature | 1999 Oct

REPOSITORIES: biostudies-literature

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Discovery of a new endogenous type C retrovirus (FcEV) in cats: evidence for RD-114 being an FcEV(Gag-Pol)/baboon endogenous virus BaEV(Env) recombinant.

van der Kuyl A C AC   Dekker J T JT   Goudsmit J J  

Journal of virology 19991001 10


Analysis of a cat genomic DNA library showed that cats harbor a previously unrecognized endogenous type C retrovirus, whose env gene has homology to the murine Fv-4 resistance gene. This unique retrovirus, designated FcEV (Felis catus endogenous retrovirus), has a type C pol gene, closely related to the primate Papio cynocephalus endogenous virus (PcEV) pol, not overlapping the env gene, unlike in other type C retroviruses, and is presumably present in a higher copy number than RD-114. Phylogene  ...[more]

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